Resultados de la búsqueda
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... block, in order to promote successful stock assessment. We tentatively examined the degree of coverage ... of the austral summer sea-ice in the current research blocks in past ten years. The sea-ice condition ... between the separated lines. In this way, over-concentration of catch and effort can be avoided while ...
Meeting Document : WG-FSA-13/39 : Autor(es): Delegation of Japan
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Preliminary assessment of Champsocephalus gunnari on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of yield ... in the 2002/2003 CCAMLR season. This paper provides a preliminary assessment of yield using the ... assessment methods of CCAMLR and discusses the implications of these results in relation to previous CCAMLR ... densities in that stratum. The composition of the population was observed to comprise a single large cohort ...
Meeting Document : WG-FSA-02/47 : Autor(es): A.J. Constable, R. Williams and T. Lamb (Australia)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12
Subarea 88.1 and for 10 years in Subarea 88.2. This report summarises the timing, depth, and location of ... 2011–12. During the 2011–12 fishing year most of the catch in Subarea 88.1 came from the slope SSRU ... 88.1K. About 70% of the catch in the north was taken from 88.1C, and about 85% of the catch on the shelf ... was taken from 88.1J. As in the past, most of the catch in Subarea 88.2 was taken from SSRU 88.2H in ...
Meeting Document : WG-FSA-12/42 : Autor(es): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... in development of GSI in summer comparable with those in the north of Subarea 48.6 and Banzare Bank ... associated life stages of the fish. To this end, we propose to follow the current research style in the ... procedure recommended at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the ...
Meeting Document : WG-SAM-15/05 : Autor(es): Delegation of Japan
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man made debris at Bird Island, South Georgia, during the 2006 winter and 2006/07 breeding season
total of 41 winter entanglements were observed in the reporting period compared to 2 observed in the ... loop of rope similar to that shown in appendix three. Plastic packaging bands were the second most ... ) were involved in 56% of all entanglements in winter and 53% in the summer. Overall females made up the ... majority of the sexed individuals in all age classes (43%) compared to males (33%) and the remainder ...
Meeting Document : SC-CAMLR-XXVI/BG/17 : Autor(es): Delegation of the United Kingdom
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of long ... estimate of biomass of juvenile Patagonian toothfish in the vicinity of Heard Island was similar to the ... of recruitment being increased for some recent years. An assessment of the trend in illegal catches ... than for the 2001/02 season because of the revision in the recruitment series. The time-trend in ...
Meeting Document : WG-FSA-02/70 : Autor(es): A.J. Constable, R. Williams and T. Lamb (Australia)
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Variations in the diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia (Antarctic)
) around Shag Rocks and the mainland of South Georgia was analyzed from c. 8,700 stomachs collected in ... Thysanoessa species. The proportion of krill and Themisto in the diet varied considerably between the three ... seasons, whereas the proportion of mysids in the diet remained fairly constant. Krill which has a high ... energy content appears to be the prefered diet. In years of krill shortage, such as in 1991, krill is ...
Meeting Document : WG-FSA-93/24 : Autor(es): K.-H. Kock and S. Wilhelms (Germany), I. Everson (United Kingdom) and J. Gröger (Germany)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ... %). Unstandardized raw catch and effort data suggested that the median catch per unit of effort in Antarctic ... truncation in the overall length frequency distribution of both species, although some evidence of reduction ... of few species. In term of biomass, the most important bycatch species are grenadiers and blue ...
Meeting Document : WG-SAM-12/33 : Autor(es): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ... %). Unstandardized raw catch and effort data suggested that the median catch per unit of effort in Antarctic ... truncation in the overall length frequency distribution of both species, although some evidence of reduction ... of few species. In term of biomass, the most important bycatch species are grenadiers and blue ...
Meeting Document : WG-FSA-12/38 : Autor(es): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)
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Distribution and some biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia subarea
fish distribution at different stages of physiological state. Juvenile fish mainly distribute in the ... south, immature fish- in the cast and southwest, while adult at the north of the shelf. It was revealed ... of fish above 25 cm in length occur in the northern shelf and associate to migrations of krill being ... biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia ...
Meeting Document : WG-FSA-99/65 : Autor(es): Zh.A. Frolkina (Russia)